Choose the menu Network Security→DoS Defend→DoS Detect to load the following page.

Figure 11-18 DoS Detect

The following entries are displayed on this screen:

¾Detect Config

Detect Time:

Specify the detect time for each DoS attack type except the

 

flooding attack type.

Detect:

Click the Detect button to start the detection. The switch will

 

detect each type of the DoS attack in turn.

¾ Detect Result

 

Port:

Display the port number.

Attack Type:

Displays the Attack Type name.

Attack Count:

Displays the count of the attack.

Tips:

You are suggested to take the following further steps to ensure the network security.

1.It’s recommended to inspect and repair the system vulnerability regularly. It is also necessary to install the system bulletins and backup the important information in time.

2.The network administrator is suggested to inspect the physic environment of the network and block the unnecessary network services.

3.Enhance the network security via the protection devices, such as the hardware firewall.

11.5 802.1X

The 802.1X protocol was developed by IEEE802 LAN/WAN committee to deal with the security issues of wireless LANs. It was then used in Ethernet as a common access control mechanism for LAN ports to solve mainly authentication and security problems.

802.1X is a port-based network access control protocol. It authenticates and controls devices requesting for access in terms of the ports of LAN access control devices. With the 802.1X protocol enabled, a supplicant can access the LAN only when it passes the authentication, whereas those failing to pass the authentication are denied when accessing the LAN.

¾Architecture of 802.1X Authentication

802.1X adopts a client/server architecture with three entities: a supplicant system, an authenticator system, and an authentication server system, as shown in the following figure.

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TP-Link TL-SL5428E manual 11.5, Detect Time, Attack Type